package com.example.blog.respository;
import com.example.blog.entity.Blog;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
import org.springframework.data.jpa.repository.Modifying;
import org.springframework.data.jpa.repository.Query;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;

public interface BlogRepository extends JpaRepository<Blog,Long>, JpaSpecificationExecutor<Blog> {
    @Query("select b from Blog b where b.published = true")
    Page<Blog> findByPublished(Pageable pageable);
    @Query("select b from Blog b where b.recommend = true and b.published=true")
    List<Blog> findTop(Pageable pageable);


    @Query("select b from Blog b where b.title like ?1 or b.content like ?1 and b.published=true")
    Page<Blog> findByQuery(String query,Pageable pageable);
    @Transactional
    @Modifying
    @Query("update Blog b set b.views= b.views+1 where  b.id =?1")
    int updateViews(Long id);
    @Query("select function('date_format',b.updateTime,'%Y') as year from Blog b group by function('date_format',b.updateTime,'%Y') order by function('date_format',b.updateTime,'%Y') desc")
    List<String> findGroupYear();
    @Query("select b from Blog b where  function('date_format',b.updateTime,'%Y')=?1")
    List<Blog> findByYear(String year);


}
